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<a name="GIMPLE-API-1"></a>
<h3 class="section">26.1 GIMPLE API</h3>
<a name="index-GIMPLE-API"></a>

<dl>
<dt><a name="index-gimple_005fsimplify"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum tree_code, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
<dt><a name="index-gimple_005fsimplify-1"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum tree_code, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
<dt><a name="index-gimple_005fsimplify-2"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum tree_code, tree, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
<dt><a name="index-gimple_005fsimplify-3"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum built_in_function, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
<dt><a name="index-gimple_005fsimplify-4"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum built_in_function, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
<dt><a name="index-gimple_005fsimplify-5"></a>GIMPLE function: <em>tree</em> <strong>gimple_simplify</strong> <em>(enum built_in_function, tree, tree, tree, tree, gimple_seq *, tree (*)(tree))</em></dt>
<dd><p>The main GIMPLE API entry to the expression simplifications mimicking
that of the GENERIC fold_{unary,binary,ternary} functions.
</p></dd></dl>

<p>thus providing n-ary overloads for operation or function.  The
additional arguments are a gimple_seq where built statements are
inserted on (if <code>NULL</code> then simplifications requiring new statements
are not performed) and a valueization hook that can be used to
tie simplifications to a SSA lattice.
</p>
<p>In addition to those APIs <code>fold_stmt</code> is overloaded with
a valueization hook:
</p>
<dl>
<dt><a name="index-_0028gimple_005fstmt_005fiterator"></a>bool: <em>fold_stmt</em> <strong>(gimple_stmt_iterator</strong> <em>*, tree (*)(tree));</em></dt>
</dl>


<p>On top of these a <code>fold_buildN</code>-like API for GIMPLE is introduced:
</p>
<dl>
<dt><a name="index-gimple_005fbuild"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum tree_code, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
<dt><a name="index-gimple_005fbuild-1"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum tree_code, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
<dt><a name="index-gimple_005fbuild-2"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum tree_code, tree, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
<dt><a name="index-gimple_005fbuild-3"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum built_in_function, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
<dt><a name="index-gimple_005fbuild-4"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum built_in_function, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
<dt><a name="index-gimple_005fbuild-5"></a>GIMPLE function: <em>tree</em> <strong>gimple_build</strong> <em>(gimple_seq *, location_t, enum built_in_function, tree, tree, tree, tree, tree (*valueize) (tree) = NULL);</em></dt>
<dt><a name="index-gimple_005fconvert"></a>GIMPLE function: <em>tree</em> <strong>gimple_convert</strong> <em>(gimple_seq *, location_t, tree, tree);</em></dt>
</dl>

<p>which is supposed to replace <code>force_gimple_operand (fold_buildN (...), ...)</code>
and calls to <code>fold_convert</code>.  Overloads without the <code>location_t</code>
argument exist.  Built statements are inserted on the provided sequence
and simplification is performed using the optional valueization hook.
</p>

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